Refrigerator Damper and Fan Motor Control Solutions
Description
Refrigerators often use a damper to control airflow and a fan to provide circulation. While discrete solutions have been used for years: this reference design uses integrated motor drivers that provide easy control: high performance and full protection. DRV8848 drives the stepper motor damper and DRV10983 drives the BLDC fan with quiet 180 ° commutation. The BLDC has closed-loop speed control: using MSP430G2553 and DRV8812 for a PWM-based power supply. The design uses a single-layer PCB. BLDC and stepper control example code is provided in the MCU firmware. Protection from over-current: over-temperature and under-voltage are all integrated in the DRV devices.
Features
- Easy control of the stepper-motor damper and BLDC along with high performance and full protectionSingle-layer PCB design for cost efficiencyFull-step and half-step indexing examples for the damperPCB layout accommodates a circular fan180 ° sensorless BLDC control with ultra-low acoustic noiseBLDC has closed-loop speed control with minimal hardware changes
Applications
- Refrigerator & freezer
- Residential breakers
- Contractor circuit
- Proximity switch
Product Categories
- Amplifiers
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| Download the bill of materials for TIDA-00297 | Download |
Test Data
Get results faster with test and simulation data that's been verified.
Download the test file for TIDA-00297| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00297 Hardware Design File | 02 Dec 2014 | ZIP | 419 | |
| TIDA-00297 BOM | 02 Dec 2014 | 120 | ||
| TIDA-00297 Schematic | 02 Dec 2014 | 286 |